"The use directive" tutorial section hangs on "Error compiling component"

[repst]

Working through https://svelte.dev/tutorial/svelte/actions, the tutorial gets stuck on "Error compiling component" as soon as I type return ( (screenshot below). If I continue typing or delete the line, the error persists. Pressing solve doesn't fix. Reloading the page does clear the error.

[repst]

Update: the error cleared fine today and I was able to complete the section. The editor is a little glitchy though: the autocomplete for handleKeydown on line 30 above will sometimes flash up briefly but not long enough to use, also when repeatedly tabbing in the editor, it will cause indents but sometimes it moves the focus outside the editor.